Improvement in apparatus for treating cane-juice with sulphurous-acid gas



A G. A. HUWALD. APPARATUS FOR TREATING CANE JUICE WITH SULFUROUS ACID GAS.

N0. 33086. I Patented-Aug. 20, 1861.

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UNITED STATES PATENT 1 ()FFIcE.

GUSTAVE A. HU WALD, OF KNOXVILLE, TENNESSEE.-

IMPROVEMENT IN APPARATUS FOR TREATING CANE-JUICE WITH SULPHUROUS-ACID GAS,

Specification forming part of Letters Patent No. 33,086, dated August 20, 1861.

To aZZ whom 712'; may concern:

Be it known that I, GUSTAVE A. HUWALD, of Knoxville, in the county of Knox and State of Tennessee, have invented a new and useful Improvement in Apparatus for Defecat ing Sugar-Cane Juices with Sulphurous-Acid Gas; and I do hereby declare that the follow ing is a full, clear, and exact description of tion and operation.

A represents the juice-column, made in sections at a a. a and with horizontal partitions b b b'b, as shown.

make closejoints, and the partitions are perforated or have small tubes c 0' 0 passed down through them, said tubes terminating sufficiently far below the under surface of the partitionsto compel the juice to drop down in smallstreams, and thus more effectually expose the same to the sulphurous-acid gas.

' The top of the column is closed tight, but its bottom is reticulated, so as to allow the juice to run off into a reservoir, B, which forms a surface of the partitions of the juice-column that no chance is allowed the juice to flow into the pipe in case it should not flow off I The sections are connectedtogether in any suitable manner, so as to freely, and in consequence thereof should rise several inches above the surface of the partitions. I

In the upper horizontal part of the sulphurfumepipe F a,horizontal shaft, H, with a deep spiral flange, e, on it, is arranged,and

on the end of said shaft apulleyor crank, d,

is fastened. Instead of this device a piston or other suitable suction and forcing device maybe used, as the function to be performed is that of drawing fumes of sulphur from .the

retort or pan G, and forcing the same into the pipe E and therefrom into the juice-column.

The operation is as follows: The sulphur is 'laid upon the pan G and ignited. The fumes are caused-to rise through the pipe F by means of the device-H e, and pass down the pipe E, and escape through the perforations of the same into the differentsections of the juice-column, and, after having filled them, pass into the open air through the pipe D. At this stage, the burning of the sulphur still continuing and the screw still revolving'and keeping up the supply of sulphurous acid gas, the sugar-juices are introduced into the column through the pipe 0 from an elevated reservoir, and descend through the small pipes from one section to another, and in their descent mingle thoroughly with the sulphurous-acid gas. The juice having passed through all the sections, runs into the reservoir in a thoroughly bleached or defecated condition.

My arrangement is very simple, and yet insures a more thorough diffusion of the sulphurous fumes throughout the sugar-juices than any of the arrangements heretofore devised for the same purpose, and thereforea more perfect defecation can be effected;

Vhat I claim as my invention, and desire to secure by Letters Patent, is-

1. In the treatment of sugar-juices with sulphu'rous fumes, the introduction of the gases to the sugar-juices through a sulphur-fume pipe, F, and a perforated vertical pipe, E, which is inclosed by a vertical juicecolnmn, A, substantially in the manner and for the purposes set forth.

2. The combination, with the j nice-column A and reticulated sulphur-fume pipe E, of a suction and. forcing device and sulphur-bunt ing retort or pan G, substantially as and for the purposes set forth. I

3. *In apparatuses for treating sugar-juices with sulphurous fumes, niaking the, column A in sections a a a" a and with partitions b b b b, which are perforated or have tubes 0 c 0 extending down through them and below their surface, in combination with perforations in the pipe E, which are located some distance above the surface of the partitions, substantially as and for the purposes set forth.

GUSTAVE A. HUWALD. Witnesses:

J m: MILLER, D. KUHN. 

